Saturday, September 16, 2017

Gulzar Natarajan revisits Piketty

Piketty, Price markups, and Houston floods:
"There are two ways to critique something which questions strongly held conventional wisdom. The honourable way is to question the core of the argument, and a less honourable way is to detract attention from the core issue by picking holes on incidentals. 

Consider three examples - Thomas Piketty's book highlighting the issue of rising incomes at the top of the ladder and widening inequality, a recent paper on rising markups in US businesses, and the Houston floods and the debate on zoning regulations in urban areas.

Take Piketty. Never mind that the primary takeaway from the book was the fact that inequality is  increasing alarmingly across the world, the right-wing critique of the book was focused on picking holes at Piketty's argument that the returns to capital was higher than economic growth, thereby increasing the incomes of the rich and widening inequality. No, they argued, capital, especially the modern information technology based ones, depreciates fast enough to offset any high returns. Or, that among all returns to capital, it is increases in property prices that forms the vast majority of wealth creation.

Sure, there are some policy implications based on what are drivers of widening inequality, but is it a necessity for taking action on the first order issue that incomes at the top of the ladder are rocketing up even as those of the overwhelming majority are stagnating or declining?

As to the debate about whether r > g, the recent work of Alan Taylor, Oscar Jorda, and Co, on the returns to property, equity, bond, and government bills for 16 countries for the 1870-2015 period is only a confirmation of Piketty's argument. I have not seen too many blogposts in Marginal Revolution on this or their extended work! "


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